优化

app/src/main/java/io/legado/app/constant/PreferKey.kt

@@ -26,4 +26,7 @@ object PreferKey {
     const val threadCount = "threadCount"
     const val keepLight = "keep_light"
     const val webService = "webService"
+    const val webDavUrl = "web_dav_url"
+    const val webDavAccount = "web_dav_account"
+    const val webDavPassword = "web_dav_password"
 }

app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt

@@ -2,6 +2,7 @@ package io.legado.app.help.storage
 
 import android.content.Context
 import io.legado.app.App
+import io.legado.app.constant.PreferKey
 import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.lib.webdav.WebDav
 import io.legado.app.lib.webdav.http.HttpAuth
@@ -23,15 +24,15 @@ object WebDavHelp {
     }
 
     private fun getWebDavUrl(): String? {
-        var url = App.INSTANCE.getPrefString("web_dav_url")
+        var url = App.INSTANCE.getPrefString(PreferKey.webDavUrl)
         if (url.isNullOrBlank()) return null
         if (!url.endsWith("/")) url += "/"
         return url
     }
 
     private fun initWebDav(): Boolean {
-        val account = App.INSTANCE.getPrefString("web_dav_account")
-        val password = App.INSTANCE.getPrefString("web_dav_password")
+        val account = App.INSTANCE.getPrefString(PreferKey.webDavAccount)
+        val password = App.INSTANCE.getPrefString(PreferKey.webDavPassword)
         if (!account.isNullOrBlank() && !password.isNullOrBlank()) {
             HttpAuth.auth = HttpAuth.Auth(account, password)
             return true

app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt

@@ -51,19 +51,19 @@ class BackupConfigFragment : PreferenceFragmentCompat(),
             }
         }
         addPreferencesFromResource(R.xml.pref_config_backup)
-        findPreference<EditTextPreference>("web_dav_url")?.let {
+        findPreference<EditTextPreference>(PreferKey.webDavUrl)?.let {
             it.setOnBindEditTextListener { editText ->
                 ATH.setTint(editText, requireContext().accentColor)
             }
             bindPreferenceSummaryToValue(it)
         }
-        findPreference<EditTextPreference>("web_dav_account")?.let {
+        findPreference<EditTextPreference>(PreferKey.webDavAccount)?.let {
             it.setOnBindEditTextListener { editText ->
                 ATH.setTint(editText, requireContext().accentColor)
             }
             bindPreferenceSummaryToValue(it)
         }
-        findPreference<EditTextPreference>("web_dav_password")?.let {
+        findPreference<EditTextPreference>(PreferKey.webDavPassword)?.let {
             it.setOnBindEditTextListener { editText ->
                 ATH.setTint(editText, requireContext().accentColor)
                 editText.inputType =
@@ -85,28 +85,33 @@ class BackupConfigFragment : PreferenceFragmentCompat(),
     }
 
     override fun onPreferenceChange(preference: Preference?, newValue: Any?): Boolean {
-        when {
-            preference?.key == "web_dav_password" -> if (newValue == null) {
-                preference.summary = getString(R.string.web_dav_pw_s)
-            } else {
-                preference.summary = "*".repeat(newValue.toString().length)
-            }
-            preference?.key == "web_dav_url" -> if (newValue == null) {
-                preference.summary = getString(R.string.web_dav_url_s)
-            } else {
-                preference.summary = newValue.toString()
-            }
-            preference?.key == "web_dav_account" -> if (newValue == null) {
-                preference.summary = getString(R.string.web_dav_account_s)
-            } else {
-                preference.summary = newValue.toString()
-            }
-            preference is ListPreference -> {
-                val index = preference.findIndexOfValue(newValue?.toString())
-                // Set the summary to reflect the new value.
-                preference.setSummary(if (index >= 0) preference.entries[index] else null)
-            }
-            else -> preference?.summary = newValue?.toString()
+        when (preference?.key) {
+            PreferKey.webDavUrl ->
+                if (newValue == null) {
+                    preference.summary = getString(R.string.web_dav_url_s)
+                } else {
+                    preference.summary = newValue.toString()
+                }
+            PreferKey.webDavAccount ->
+                if (newValue == null) {
+                    preference.summary = getString(R.string.web_dav_account_s)
+                } else {
+                    preference.summary = newValue.toString()
+                }
+            PreferKey.webDavPassword ->
+                if (newValue == null) {
+                    preference.summary = getString(R.string.web_dav_pw_s)
+                } else {
+                    preference.summary = "*".repeat(newValue.toString().length)
+                }
+            else ->
+                if (preference is ListPreference) {
+                    val index = preference.findIndexOfValue(newValue?.toString())
+                    // Set the summary to reflect the new value.
+                    preference.setSummary(if (index >= 0) preference.entries[index] else null)
+                } else {
+                    preference?.summary = newValue?.toString()
+                }
         }
         return false
     }